Re: No sleep tracking! Really?!?! What about 3rd party apps?
I believe this is my first forum post. I'm a medical researcher with recent experience in technologies utilised for sleep science. Wearable, multi-function activity trackers are very poor at assessing complex variables of sleep. About all they're good for, regarding sleep assessment, is basic quantitative data (i.e., hours in bed). Based on comparative testing against the rigs of sensors that are required for peer-reviewed sleep science, consumer activity trackers are not only inadequate, but often present false insights.
Originally Posted by Dave Marsh
You're better off simply manually logging your sleep. iOS's Health app permits this. If you're not under medical supervision and just interested in better sleep via QS (Quantified Self) method, start by logging your sleep in Health app, track your diet and exercise, keep a written journal and analyse after some time.
Apple didn't include a native sleep tracking app in the Watch because science doesn't support it. Battery life is entirely besides the point. Sleep tracking via a single-appendage, wearable activity band/clip is a gimmick. Use the sensors instead for tracking continuous vigorous movements, otherwise known as exercise.